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Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Caveats
Resolved Caveats—Cisco IOS Release 12.0(31)S6
mpls traffic-eng auto-tunnel mesh
mpls traffic-eng auto-tunnel mesh tunnel-num min 10000 max 20000
Depending on the configuration of he router and the topology, the symptom may also occur when
you enter the following sequence of commands:
no mpls traffic-eng auto-tunnel mesh
mpls traffic-eng auto-tunnel mesh
no mpls traffic-eng auto-tunnel mesh
mpls traffic-eng auto-tunnel mesh
Conditions: This symptom is observed on a Cisco 12000 series that runs the gsr-p-mz image of a
Cisco IOS interim release for Release 12.0(31)S.
Workaround: When you want to disable and then re-enable the mpls traffic-eng auto-tunnel mesh
command, save the configuration and reload the router after you have disabled the command and
before you re-enable the command, as in the following example:
no mpls traffic-eng auto-tunnel mesh
...
copy run start
reload
mpls traffic-eng auto-tunnel mesh
Similarly, when you want to change the range of unit numbers (that is, tunnel IDs) that is used by
the mpls traffic-eng auto-tunnel mesh command, disable the command, change the range, save the
configuration, reload the router, and then re-enable the command, as in the following example:
no mpls traffic-eng auto-tunnel mesh
mpls traffic-eng auto-tunnel mesh tunnel-num min 10000 max 20000
...
copy run start
reload
mpls traffic-eng auto-tunnel mesh
• CSCeh55186
Symptoms: MPLS TE LSPs may not come up and may remain stuck in the RSVP signaling
proceeding state.
Conditions: This symptom is observed on a Cisco router when the MPLS TE LSPs are processed
over inter-autonomous system broadcast links on which the passive-interface command is enabled.
Workaround: There is no workaround.
Further Problem Description: The passive-interface command contains the router ID of the remote
Autonomous System Border Router (ASBR). A PATH message that leaves the passive interface of
the Cisco router is sent to remote ASBR, causing an ARP request to be initiated for remote ASBR.
However, there is no response to the ARP request (when there is no proxy configured for ARP),
preventing the PATH message from reaching the remote ASBR.
• CSCej78720
Symptoms: A 4-port OC-48 POS Engine 4+ line card crashes repeatedly after you have entered the
microcode reload command for all line cards in the router in succession.
Conditions: This symptom is observed on a Cisco 12000 series that runs an interim release for
Cisco IOS Release 12.0(32)S and that functions as a PE router in an option 3 MPLS-(M)VPN
Inter-AS environment when the affected line card has a core-facing interface.
Workaround: Perform a forced SSO switchover of the RP. Doing so stops the line card from
crashing.
• CSCek04385
Symptoms: A 4-port OC-3 ATM ISE or 4-port OC-12 POS ISE line card on a PE router may crash
when one of its egress interfaces that faces a P router is shut down while traffic is flowing.
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